import net.minecraft.item.ItemAppleGold; //导入依赖的package包/类
private void eatFood() {
	
	for(int slot = 44; slot >= 9; slot--) {
		ItemStack stack = Wrapper.getPlayer().inventoryContainer.getSlot(slot).getStack();
		
		
		if(stack != null) {
			if(slot >= 36 && slot <= 44) {
				if(stack.getItem() instanceof ItemFood 
						&& !(stack.getItem() instanceof ItemAppleGold)) {
					Wrapper.getPlayer().inventory.currentItem = slot - 36;
					Wrapper.getMinecraft().gameSettings.keyBindUseItem.pressed = true;
					return;
				}
			} else if(stack.getItem() instanceof ItemFood 
					&& !(stack.getItem() instanceof ItemAppleGold)) {
				int itemSlot = slot;
				int currentSlot = Wrapper.getPlayer().inventory.currentItem + 36;
				Wrapper.getMinecraft().playerController.windowClick(0, slot, 0, ClickType.PICKUP, Wrapper.getPlayer());
				Wrapper.getMinecraft().playerController.windowClick(0, currentSlot, 0, ClickType.PICKUP, Wrapper.getPlayer());
				Wrapper.getMinecraft().playerController.windowClick(0, slot, 0, ClickType.PICKUP, Wrapper.getPlayer());
				return;
			}
		}
	}
}
 

import net.minecraft.item.ItemAppleGold; //导入依赖的package包/类
/**
 * @param event
 */
@SubscribeEvent
public void eatGoldenApple(PlayerUseItemEvent.Finish event)
{
    EntityPlayer player = event.entityPlayer;
    if (ConfigHandler.BACKPACK_ABILITIES)
    {
        if (event.item.getItem() instanceof ItemAppleGold &&
                //((ItemAppleGold) event.item.getItem()).getRarity(event.item) == EnumRarity.epic &&
                Wearing.isWearingTheRightBackpack(player, "Rainbow"))
        {

            InventoryBackpack inv = new InventoryBackpack(Wearing.getWearingBackpack(player));
            if (inv.getLastTime() > 0) return;
            inv.setLastTime(Utils.secondsToTicks(150));
            inv.dirtyTime();
            if (!player.worldObj.isRemote)
            {
                String nyanString =
                        EnumChatFormatting.RED + "N" +
                                EnumChatFormatting.GOLD + "Y" +
                                EnumChatFormatting.YELLOW + "A" +
                                EnumChatFormatting.GREEN + "N" +
                                EnumChatFormatting.AQUA + "C" +
                                EnumChatFormatting.BLUE + "A" +
                                EnumChatFormatting.DARK_PURPLE + "T";
                player.addChatComponentMessage(new ChatComponentText(nyanString));
                ModNetwork.sendToNearby(new EntitySoundPacket.Message(EntitySoundPacket.NYAN_SOUND, player), player);
            }
        }
    }

    if (event.item.getItem() instanceof ItemPotion
            && (event.item.getItem()).getDamage(event.item) == 0)
    {
        if (!player.worldObj.isRemote)
        {
            FluidEffectRegistry.executeFluidEffectsForFluid(FluidRegistry.WATER, player, player.getEntityWorld());
        }
    }
}
 

import net.minecraft.item.ItemAppleGold; //导入依赖的package包/类
@Override
public boolean isItemValid(ItemStack itemStack) {
	return itemStack.getItem() instanceof ItemAppleGold;
}